JP3472225B2 - Copying device and storage medium - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine having a configuration such as a so-called electronic bulletin board or a facsimile machine, and a storage medium storing a program for controlling the copying machine.

[0002]

2. Description of the Related Art A so-called electronic bulletin board is a contact type image scanner (hereinafter, referred to as a Co-type image scanner) for reading images such as characters and figures written on a writing sheet with a felt pen.
ntactImageScanner is abbreviated as “CI
Say "S". ) Or a thermal printer for recording an image obtained by CIS on a recording paper.

In this type of apparatus, replaceable roll-shaped thermal paper is used as the recording paper, and is set in the recording paper holder so that the leading end of the thermal paper is sent out through the paper discharge port.
On the other hand, as the writing sheet, an endless belt-shaped white sheet is used, and an image such as characters and figures can be written on the substantially half-circumferential surface. The image written on the writing sheet is read by the CIS when the sheet moves by a half turn, and substantially at the same time, the sequentially read images are copied onto the recording paper via the thermal printer.

As described above, the reading operation and the recording operation are carried out at the same time and the copying is performed at the same time, but a preliminary operation is required in advance before the respective operations are performed. That is,
Before the reading operation, the reading adjustment is performed in order to obtain the optimum reading result by changing the binarization level each time. This reading adjustment is performed, for example, at two points on the writing sheet, and is essential to suppress fluctuations in the reading level due to deterioration of the light source and the like. On the other hand, before the recording operation, the front end of the recording paper is slightly fed by about 5 mm so that the front end of the recording paper is smoothly discharged. This is because, for example, immediately after replacing the recording paper, the beginning of the recording paper may not reach the proper position and the first part of the recorded image may be cut off. It is needed to ensure that you are guided. In short, when copying the image of the writing sheet onto the recording paper, for example, the recording paper is slightly fed each time, read adjustment is performed, the writing sheet is further moved by about 3 cm, and read adjustment is performed again. The reading operation and the recording operation are concurrently performed to start copying.

[0005]

However, the preliminary operation before the start of copying as described above causes the start of the copying operation to be delayed, and it takes time from the user requesting copying to the completion of copying. The time of is felt redundant. In short, when copying, a certain amount of preliminary operation time is required before starting copying due to the minute feeding operation of the recording paper and the read adjustment operation twice, and such preliminary operation time is shortened as much as possible. Was needed to improve usability.

The present invention has been proposed in view of the above points, and provides a copying apparatus capable of shortening the preliminary operation time until the start of copying as much as possible, and a program for controlling the copying apparatus. It is an object to provide a stored storage medium.

[0007]

In order to achieve the above-mentioned object, a copying apparatus according to the first aspect of the present invention comprises a reading means for reading an image on a sheet and a recording paper holding means for holding a recording paper.
It has a lifting portion, the Symbol of the image obtained by the reading means
Recording on the above-mentioned recording paper supplied from the recording paper holder, and the paper exit
And a recording unit for discharging the recording medium from the recording medium and performing a copying function by operating these units in parallel, and in advance when the reading unit and the recording unit are operated in parallel for copying, The above chart paper goes smoothly
The SL in the recording means to permit discharge from the discharge outlet
While performing the preliminary feeding operation to eject the leading edge of the recording paper from the paper ejection port , at the same time, the reading means reads
To obtain the binarization level for discriminating the acquired images
It is characterized by having operation control means for performing the reading adjustment operation of.

According to such a copying apparatus, the preliminary feeding operation of the recording paper is performed as a preliminary operation which should be performed in advance when copying, but at the same time, the reading adjustment operation is also performed, so that the preliminary operation before the start of copying is performed. The time required for the operation is unified, and the preliminary operation time can be shortened as much as possible.

A copying machine according to a second aspect of the present invention is the copying machine according to the first aspect, wherein the operation control means simultaneously performs the preliminary feeding operation of the recording paper and the read adjusting operation. after it was Align causes again perform the reading adjustment operation to the reading means.

According to such a copying apparatus, in addition to the effect of the copying apparatus according to the first aspect, the reading adjusting operation is performed again after the reading adjusting operation is performed at the same time as the preliminary feeding operation of the recording paper. Therefore, the accuracy of reading adjustment can be improved and the time required for the entire preliminary operation can be shortened.

Further, the copying apparatus of the invention described in claim 3 is the copying apparatus according to claim 1 or 2, wherein the recording paper holding section is a replaceable roll-shaped recording.
The paper is held to be fed through the sheet discharging port
It is a thing .

According to such a copying apparatus, in addition to the effect obtained by the copying apparatus according to the first or second aspect, the front end of the recording paper is surely discharged from the paper discharge port during copying even immediately after replacement of the recording paper. Since it is sent out, it is possible to smoothly eject the recording paper with the copying operation.

A copying apparatus according to a fourth aspect of the present invention is the copying apparatus according to any one of the first to third aspects, wherein the recording paper holding section mounts and unmounts the recording paper.
With a cover to open the cover
A detection means for detecting a closed it after, the
The operation control means opens and closes the cover by the detection means.
When copying immediately after motion is detected, the recording paper
It is intended to perform the Bei feed operation.

According to such a copying apparatus, in addition to the effect of the copying apparatus according to any one of claims 1 to 3, instead of performing the preliminary feeding operation for each copying, particularly, the detection is performed. Since it is determined that the recording paper has been replaced or set again based on the detection of the means, when copying is performed immediately after the recording paper is replaced or set is set again, it is necessary to align the leading edge of the recording paper. In addition, the preliminary feeding operation of the recording paper is surely performed, and the leading edge of the recording due to the replacement of the recording paper can be effectively prevented.

Further, the storage medium of the invention described in claim 5 comprises a reading means for reading an image on a sheet and a recording paper.
The recording paper having a recording paper holding section for holding the image obtained by the reading means is supplied from the recording paper holding section.
A storage medium that stores a program for controlling a copying apparatus that executes a copying function by operating the recording means and the recording means for discharging the paper from a discharge port. case of parallel operation of the reading means and the recording means in advance, said recording means to said recording sheet tip the discharge outlet of the to permit discharge from the recording paper steadily the discharge outlet for To be discharged from
While causing the Bei feeding operation, therewith to said reading means simultaneously, preparative binary level for discriminating the read image
It is characterized in that a program including an operation control program for performing a read adjustment operation for obtaining is stored.

According to such a storage medium, by operating the CPU based on the stored program,
The operation of the copying apparatus according to the first aspect can be realized.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a block diagram showing a control circuit of a facsimile apparatus having a copying function as an embodiment of the copying apparatus according to the present invention. In this embodiment, unlike the conventional electronic bulletin board, the present invention is applied to a facsimile device, but both the facsimile device and the electronic bulletin board generally perform copying through similar means. Therefore, detailed illustration and description of the already known mechanical mechanism for copying will be omitted.

As shown in FIG. 1, the control circuit of the facsimile apparatus includes a CPU 10, an NCU 11, a RAM 12, a modem 13, a ROM 14, an EEPROM 15, and a gate array 1.
6, codec 17, DMAC 18, reading unit 21, recording unit 22, operation unit 23, display unit 24, and external connection unit 2
It is roughly configured by including 5 and the like. CPU10, N
CU11, RAM12, modem 13, ROM14, EE
The PROM 15, the gate array 16, the codec 17, and the DMAC 18 are connected to each other by a bus line 26. The bus line 26 includes an address bus, a data bus,
And control signal lines. In the gate array 16,
The reading unit 21, the recording unit 22, the operation unit 23, the display unit 24, and the external connection unit 25 are connected. A public telephone line 27 is connected to the NCU 11.

The CPU 10 controls the operation of the entire facsimile apparatus. The NCU 11 is connected to the public telephone line 27 and performs network control. The RAM 12 is mainly used as a line buffer memory for a work area of the CPU 10 and a read image development area. The modem 13 performs modulation and demodulation of facsimile data. ROM14 is C
Data such as programs executed by the PU 10 and setting values are stored. The EEPROM 15 stores various flags and setting data. The gate array 16 is a CPU
10 functions as an input / output contact point between each of the units 21 to 25.
The codec 17 encodes and decodes facsimile data. The DMAC 18 mainly writes and reads data to and from the RAM 12.

The reading unit 21 includes an image scanner, a light source,
Further, it has a sheet motor and the like, and has a function of reading an image from a sheet such as a document based on the amount of reflected light. The recording unit 22 includes a thermal printer, a recording motor, and the like, and has a function of recording an image on recording paper. The operation unit 23 is for transmitting an operation signal to the CPU 10 in response to an operation button pressed by the user. The display unit 24 is an LCD (LiquidCrys).
talDisplay: liquid crystal display), etc., and displays the operating state of the device. The external connection unit 25 is used when connecting an external device such as a personal computer to the facsimile device.

To explain the main points of the present invention, generally, when making a copy in a facsimile apparatus, the user sets an original sheet at a predetermined position of the reading section 21 and then presses a predetermined operation button to make a copy. Is instructed to start. Then, the CPU 10 performs the reading operation and the recording operation in parallel to start the copying operation. As the preliminary operations to be performed before that, the reading adjusting operation for the original sheet and the minute feeding operation of the recording sheet (corresponding to the preliminary feeding operation). And are requested to the reading unit 21 and the recording unit 22, respectively. Here, the minute feeding operation is one of the preliminary operations required to smoothly feed the leading end of the recording paper such as a roll-shaped thermal paper from the paper exit, If each sheet is automatically cut off near the paper exit, the leading edge of the next sheet of recording paper will fall out of the paper exit and will not be ejected. It is said that.

On the other hand, the reading adjustment operation is executed twice, for example, in order to suppress the fluctuation of the reading level due to the deterioration of the light source and the like. Specifically, the first read adjustment is programmed to be performed at the same time as the recording paper minute feeding operation. After the first read adjustment operation and the recording paper minute feeding operation are performed at the same time, the second reading adjustment is performed again. The second reading adjustment is performed. Depending on the reading adjustment performed twice, a binarization level for discriminating the image is calculated according to the amount of reflected light from the original document sheet as the base, and the image reading from the original sheet is performed based on this binarization level. After the series of preliminary operations are started, the original copying operation is started.

That is, the reading section 21 realizes a reading means for reading the image on the sheet. The recording unit 22 realizes a recording unit that records the image obtained by the reading unit on a recording sheet. The CPU 10 causes the recording means to perform a minute feeding operation of the recording paper in order to smoothly discharge the recording paper in advance when the reading means and the recording means are operated in parallel for copying, and at the same time, the reading means adjusts the reading adjustment. The operation control means for performing the operation is realized.

Further, the ROM 14 is provided with a reading means for reading an image on a sheet and a recording means for recording the image obtained by the reading means on a recording paper, and copying is performed by operating these means in parallel. A storage medium for storing a program for controlling a copying machine that executes a function, wherein the recording medium is smoothly discharged before the reading means and the recording means are operated in parallel for copying. It realizes a storage medium that stores a program including an operation control program for causing the recording unit to perform the minute feeding operation of the recording paper and at the same time to cause the reading unit to perform the read adjustment operation.

Next, the operation of copying with the facsimile apparatus having the above configuration will be described with reference to the drawings.

FIG. 2 is a flow chart showing a copy processing procedure in the facsimile apparatus. As shown in this figure, first, the CPU 10 determines whether or not the user has instructed to start copying by pressing a predetermined operation button (S1). The user gives the instruction to start copying
Usually, after the original sheet is set at a predetermined position of the reading unit 21, the recording paper is
An image corresponding to one original sheet is recorded each time.

When the start of copying is instructed (S1: YE
S), the CPU 10 gives a preliminary operation signal to the recording motor before concurrently executing a reading process and a recording process, which will be described later, to slightly advance the recording paper in the forward direction by about 5 mm as a preliminary operation (S2). ). As a result, a part of the leading edge of the recording paper is pulled out slightly from the inner entrance side to the outer exit side of the paper ejection port, and the tip of the recording paper remains inside the paper ejection port even if it is continuously fed later. It won't get stuck. This means that such a problem naturally does not occur even when copying is performed immediately after the exchange of the recording paper, and for that purpose, the minute feeding operation of the recording paper is required. Note that the recording process is not performed on the recording paper during this minute feeding operation.

Simultaneously with S2, the CPU 10 causes the reading unit 2
The first read adjustment is performed for 1 (S3). As a result, the CPU 10 obtains the first adjustment data serving as the reference of the binarization level from the reading unit 21 (S4), and the first adjustment data is stored in the register of the CPU 10 or R.
It is instantly stored in the AM 12 or the like. That is, since the minute feeding operation of the recording paper and the reading adjustment operation proceed at the same time, the time required for the entire preliminary operation is shortened as compared with the conventional electronic bulletin board or the like in which each operation independently proceeds.

C for which the first adjustment data was obtained
The PU 10 further causes the reading unit 21 to perform the second reading adjustment (S5). At this time, the CPU 10 applies a control signal to the seat motor to move the input seat to approximately 3 cm.
The reading unit 21 is made to perform the reading adjustment after being moved about a degree. As a result, the CPU 10 obtains the second adjustment data from the reading unit 21 (S6), and the second adjustment data is registered in the register of the CPU 10 or RA similarly to the first adjustment data.
It is instantly stored in M12 or the like.

After making the reading unit 21 and the recording unit 22 perform the preliminary operations such as the reading adjustment and the minute feeding of the recording paper as described above, the CPU 10 which has acquired the two adjustment data, calculates the arithmetic mean of these two adjustment data. The binarization level is calculated based on the above (S7). The binarization level serves as a reference when discriminating an image to be recognized according to the amount of reflected light from the original document sheet as the base as described above.

The CPU 10 thus obtained the binarization level
Starts the copying operation as the originally instructed operation. At this time, the CPU 10 requests the reading unit 21 for the reading process (S8), and at the same time, requests the recording unit 22 for the recording process (S9). In response to a request for reading processing, in the reading unit 21, the image on the document sheet is moved line by line by the reading unit 21 while the image on the document sheet is continuously moved along a predetermined direction. Read. The read image obtained by the reading unit 21 is R
The recording data is sequentially prepared via the AM 12 and the like. In the recording unit 22 which is slightly delayed from such a reading operation, the recording process is performed line by line on the recording paper gradually discharged from the paper discharge port based on the recording data read line by line from the RAM 12 or the like. Is given. As a result, the recording operation can be performed almost at the same time without waiting for the end of the reading operation, and the recording operation can be ended with a slight delay after the end of the reading operation, and the time required for the entire copying operation is almost one reading. It can be set to the same level as the time required for.

CP for controlling the copying operation as described above
U10 determines whether or not the original sheet has been completely discharged (S10). In order to judge the discharge of the original sheet, a signal output from the sheet sensor according to the presence or absence of the original sheet is used.

When the original sheet is completely discharged (S1
0: YES), the CPU 10 determines that the reading operation in one copy is completed, and further completes the recording operation based on the recording data remaining in the RAM 12,
All the operations related to this copying process are ended.

In S10, if the original sheet is not yet ejected and is being read (S10: NO), the CPU 10
Returns to S8 and continues the simultaneous reading process and recording process.

In S1, if the user does not press the predetermined operation button and does not instruct the start of copying (S1: NO), the CPU 10 is involved in the copying process until the predetermined operation button is pressed. Wait without starting a series of operations.

Therefore, according to the facsimile apparatus having the above-described configuration and operation, each time the user instructs copying, a minute feeding operation of the recording paper is performed as a preliminary operation that should be performed in advance, but at that time. Since the first read adjustment operation is also performed at the same time, the time required for the preliminary operation before the start of copying is unified, and the preliminary operation time can be shortened as compared with the case where each operation is performed separately.

An electronic bulletin board will be described as another embodiment of the copying apparatus according to the present invention. FIG. 3 is a schematic perspective view showing the appearance of the electronic bulletin board.

As shown in FIG. 3, the electronic bulletin board A includes a writing sheet S, a bulletin board case 1 for accommodating the writing sheet S, a driving roller 2 and a driven roller 3 for rotating the writing sheet S, and a contact type image. Scanner (CIS)
4, a main body case 5 having a built-in thermal printer and the like, and a control circuit to be described later, and the like.

The writing sheet S, like a so-called whiteboard, is capable of writing characters and figures with a felt pen such as black and red, and has an endless belt-shaped outer peripheral surface as a writing surface. .

The bulletin board case 1 is one in which a half-circumferential surface of the writing sheet S is exposed to the outside through the writing window 1a.
Writing sheet S pulled up and down by 3
Is stored. Furthermore, inside the bulletin board case 1, the CI
In addition to S4 and the like, a sheet motor (not shown) for rotating the drive roller 2 is also incorporated.

The drive roller 2 and the driven roller 3 rotate the writing sheet S, but the driven roller 3
Rotates while following the writing sheet S, while the drive roller 2 rotates directly through the sheet motor. The drive roller 2 normally rotates so as to move the writing sheet S by about a half turn, but at the time of a preliminary operation described later, the driving roller 2 rotates so as to move the writing sheet S only by a predetermined length. .

The CIS 4 is arranged above the driven roller 3 provided on the inner peripheral side of the upper portion of the writing sheet S,
An image such as characters and figures written on the writing sheet S is read line by line along the width direction according to the amount of reflected light. Further, the CIS 4 can read the image on the writing sheet S for each color, and for that purpose, LEDs (not shown) whose emission colors are yellow and red are used as a light source. These LEDs are alternately controlled to emit light according to a signal from the control circuit. That is, when the yellow LED emits light, the red and black parts are recognized equally by the light receiving element of the CIS4, while the red LE is recognized.
When D emits light, only the black portion is recognized, and the red portion is extracted by calculating the recognition pattern obtained for each of these emission colors. The black part is
It is extracted based on the amount of reflected light obtained when only the red LED is made to emit light.

As described above, the CIS 4 reads an image written on approximately half the circumference of the writing sheet S by one reading operation, but before that, reading adjustment is required as a preliminary operation. This reading adjustment is an operation required to obtain the optimum reading result by changing the binarization level by CIS4 each time, and is executed to suppress the fluctuation of the reading level due to the deterioration of the light source and the like. It is a thing. Black marks (two places) for detecting the reading start line of the CIS 4 are formed on the left or right end of the writing sheet S, which is covered by the bulletin board case 1, (not shown). By detecting this black mark, reading is performed every half turn. At the start of normal reading, the CIS 4 is located on the line where the black mark is formed.
The CIS 4 is made to read one line on which a black mark is formed, and the writing sheet S is further moved by a predetermined amount (for example, 3 cm).
About one line is read at the moved position, and the binarization level is determined from the two reading results thus obtained.

The main body case 5 is provided at the bottom of the bulletin board case 1, and has a thermal printer, recording paper, a recording motor for moving the recording paper, a control circuit to be described later, and the like inside the not-shown interior. And so on. On the front surface of the main body case 5, various operation buttons 5a and a paper discharge port 5b for discharging recording paper are provided.
The thermal printer records a read image obtained by CIS4 on a recording paper by a thermal recording system. As the recording paper, roll-shaped thermal paper that can be replaced each time is used. When exchanging the recording paper, a part of the main body case 5 is opened as a split cover, and the front end of the recording paper is set inside the main body case 5 so as to be sent out through the paper discharge port 5b. The operation button 5a is operated by the user when starting copying.
Although the recording paper in the gradually recorded state is ejected from the paper ejection port 5b, the recording paper in which the recording is finally completed is
Usually, it is cut off by the user through a paper cutter (not shown) provided in the vicinity of the paper discharge port 5b for each recording.

As such a thermal printer and recording paper, those which can reproduce a read image including a color portion such as red or black and which has been recognized by coloring each color portion are used. Specifically, in the thermal printer, the recording level at the time of recording is made different for each color by controlling the driving time for each heating element. On the other hand, the recording paper is
A dedicated thermal paper having a red coloring layer that requires high-temperature heat for coloring and a black coloring layer that develops by low-temperature heat is used.
When the read image is copied onto the recording paper, the image written on the writing sheet S should be output immediately on the spot, and the reading operation for the writing sheet S by the CIS4 is performed in parallel. Meanwhile, the recording operation on the recording paper by the thermal printer is simultaneously performed. The copying operation in which the reading operation and the recording operation are performed at the same time is performed as one operation every time the writing sheet S moves about half a circle.

Further, even before the recording operation is started with such copying, a preliminary operation is required as in the read adjustment. That is, before the recording operation, a minute feeding operation for the recording paper of about 5 mm is required so that the front end of the recording paper is smoothly ejected from the paper ejection port 5b. this is,
As described in the section of the prior art and the previous embodiment,
When copying is performed after the recording of one sheet is completed or immediately after the recording paper is exchanged, the leading end of the recording paper is surely ejected from the paper ejection port 5b to prevent the leading end of the recording. Therefore, since the apparatus cannot know the position of the leading edge of the recording paper, it is performed each time the recording operation is performed. The main point of the present invention is that the above-described first read adjustment is controlled so as to be performed simultaneously with the minute feed operation. Such control is configured to be performed mainly by the control circuit described below.

FIG. 4 is a block diagram showing the control circuit of the electronic bulletin board.

The control circuit includes CPU 30, ROM 31, R
AM32, EEPROM33, interface 34,
The reading unit 40, the recording unit 41, the operation unit 42, the external connection unit 43, and the like are included in the schematic configuration. CPU30,
The ROM 31, the RAM 32, the EEPROM 33, and the interface 34 are mutually connected by a bus line. The bus line includes an address bus, a data bus, and a control signal line. A reading unit 40, a recording unit 41, an operating unit 42, and an external connecting unit 43 are connected to the interface 34.

The CPU 30 controls the operation of the entire electronic bulletin board A. The ROM 31 stores data such as programs executed by the CPU 30 and setting values. RAM32
Is mainly used as a line buffer memory for a work area of the CPU 30 and a read image development area. E
The EPROM 33 stores various flags and setting data. The interface 34 includes the CPU 30 and each unit 4
It functions as an input / output contact with 0-43. Reading unit 40
Has a function of reading an image from the writing sheet S by including the CIS 4 and the sheet motor. The recording unit 41 is
It has the above-mentioned thermal printer, a recording motor, etc., and has a function for recording an image on a recording sheet. Operation part 4
Reference numeral 2 is for having the operation button 5a and transmitting an operation signal requested by the user to the CPU 30.
The external connection unit 33 is used when connecting an external device such as a personal computer to the electronic bulletin board A.

To explain the main points, generally, the user writes an image such as a character or a figure on the writing sheet S and then presses a predetermined operation button 5a to instruct the start of copying. Then, the CPU 30 starts the copying operation by concurrently performing the reading operation and the recording operation. Before that, the CPU 30 performs the reading adjustment operation for the writing sheet S and the minute feeding operation of the recording sheet as the preliminary operation to be performed each time. 40
And the recording unit 41. The first read adjustment is programmed to be performed at the same time as the recording paper minute feeding operation. After the first read adjustment operation and the recording paper minute feeding operation are performed at the same time, the second reading adjustment is performed again.
The second reading adjustment is performed. Depending on the reading adjustment performed twice, the binarization level for discriminating the image is calculated according to the amount of light reflected from the writing sheet S which is the base, and the darker part than the writing sheet S is calculated based on this binarization level. Is recognized as the image actually written.

That is, the reading section 40 realizes a reading means for reading the image on the sheet. The recording unit 41 realizes a recording unit that records the image obtained by the reading unit on a recording sheet. The CPU 30 causes the recording means to perform the minute feeding operation of the recording paper in order to smoothly eject the recording paper before the reading means and the recording means are concurrently operated for copying, and at the same time, the reading means adjusts the reading. The operation control means for performing the operation is realized.

Further, the ROM 31 is provided with a reading means for reading an image on a sheet and a recording means for recording the image obtained by the reading means on a recording paper, and copying is performed by operating these means in parallel. A storage medium for storing a program for controlling a copying machine that executes a function, wherein the recording medium is smoothly discharged before the reading means and the recording means are operated in parallel for copying. It realizes a storage medium that stores a program including an operation control program for causing the recording unit to perform the minute feeding operation of the recording paper and at the same time to cause the reading unit to perform the read adjustment operation.

Next, the operation of the electronic bulletin board having the above configuration will be described with reference to the drawings.

FIG. 5 is a flowchart showing a copy processing procedure in the electronic bulletin board A. As shown in this figure, the CPU 30 first determines whether or not the user has instructed to start copying by pressing a predetermined operation button 5a (S21). Note that the user usually gives an instruction to start copying when the characters or figures written in the half circumference of the writing sheet S are copied on the recording paper on the spot, and the recording is performed every time the copying is instructed. An image corresponding to half the circumference of the writing sheet S is recorded on the paper each time.

When the start of copying is instructed (S21: YE
S), the CPU 30 gives a preliminary operation signal to the recording motor before carrying out a reading process and a recording process which will be described later in parallel, thereby slightly advancing the recording paper in the forward direction by about 5 mm as a preliminary operation (S22). ). As a result, a part of the leading edge of the recording paper is pulled out slightly from the inner entrance side of the paper ejection port 5b to the outer exit side, and even if the recording paper is continuously fed out later, the recording paper inside the paper ejection port 5b is The tip will not clog. This means that such a problem naturally does not occur even when copying is performed immediately after exchanging the recording paper, and it is understood that the minute feeding operation of the recording paper is also required for this purpose. Note that the recording process is not performed on the recording paper during this minute feeding operation.

Simultaneously with S22, the CPU 30 causes the CIS
The first read adjustment is performed on No. 4 (S23). As a result, the CPU 30 obtains the first adjustment data serving as the reference for the binarization level from the CIS 4 (S24), and the first adjustment data is instantaneously stored in the register of the CPU 30, the RAM 32, or the like. In other words, since the minute feeding operation of the recording paper and the reading adjustment operation proceed at the same time,
The time required for the entire preliminary operation is shortened as compared with the conventional case in which each operation is independently advanced.

C for which the first adjustment data was obtained
The PU 30 further causes the CIS 4 to perform the second reading adjustment (S25). At this time, the CPU 30 gives a control signal to the sheet motor to move the writing sheet S to approximately 3c.
After moving about m, the CIS 4 is made to perform reading adjustment. As a result, the CPU 30 acquires the second adjustment data from the CIS 4 (S26), and the second adjustment data is registered in the register of the CPU 30 or RA similarly to the first adjustment data.
It is instantly stored in M32 or the like.

After making the reading unit 40 and the recording unit 41 perform the preliminary operations such as the reading adjustment and the minute feeding of the recording paper as described above, the CPU 30 which has acquired the two adjustment data calculates the arithmetic mean of the two adjustment data. The binarization level is calculated based on the above (S27). The binarization level serves as a reference when discriminating an image to be recognized from the writing sheet S as the base according to the amount of reflected light as described above.

The CPU 30 thus obtained the binarization level
Starts the copying operation as the originally instructed operation. At this time, the CPU 30 requests the reading unit 40 to perform the reading process (S28), and at the same time, requests the recording unit 41 to perform the recording process (S29). In response to the request for the reading process, in the reading unit 40, the writing sheet S moves continuously along a predetermined direction, and the image written on the writing sheet S is CIS4 based on the binarization level.
Is read line by line. The read image obtained by CIS4 is sequentially prepared as recording data via the RAM 32 or the like. In the recording unit 41 slightly delayed from such a reading operation, recording processing is performed line by line on the recording paper gradually discharged from the paper discharge port 5b based on the recording data read line by line from the RAM 32 or the like. Is applied. As a result, the recording operation can be performed almost at the same time without waiting for the end of the reading operation, and the recording operation can be ended with a slight delay after the end of the reading operation, and the time required for the entire copying operation is almost one reading. It can be set to the same level as the time required for.

CP for controlling the copying operation as described above
U30 determines whether or not the writing sheet S has moved half a circle (S30). In order to determine the half-circle movement of the writing sheet S, the CIS 4 has read a black mark attached to a position different from the initially read black mark, or the number of rotations of the sheet motor is a preset value. The state that has reached is determined as a judgment factor.

When the writing sheet S moves half a turn (S30:
YES), the CPU 30 determines that the reading operation in one copy is completed, further completes the recording operation based on the recording data remaining in the RAM 32, and then completes all the operations related to this copying process. Let

At S30, if the writing sheet S has not moved half a turn and is in the middle of reading (S30: NO), CP
The U30 returns to S28 and continues the simultaneous read processing and recording processing.

In S21, when the user does not press the predetermined operation button 5a and does not instruct the start of copying (S21: NO), the CPU 30 executes the copy process until the predetermined operation button 5a is pressed. It waits without starting a series of operations related to.

Therefore, according to the electronic bulletin board A having the above-described configuration and operation, each time the user instructs copying, a minute feeding operation of the recording paper is performed as a preliminary operation that should be performed in advance. Since the first read adjustment operation is also performed at the same time, the time required for the preliminary operation before the start of copying is unified, and the preliminary operation time can be shortened as compared with the case where each operation is performed separately.

The present invention is not limited to the above embodiments.

For example, the first read adjustment operation for the sheet and the minute feeding operation of the recording paper are performed at the same time. However, if the time required for the minute feeding operation is longer than one reading adjustment operation, The second read adjustment operation may be started continuously during the feeding operation.

Further, the main body case 5 described in the electronic bulletin board A is provided with a sensor or the like for detecting the opening / closing of the cover due to the exchange of the recording paper, and the opening / closing of the cover is detected via this sensor. The minute feeding operation of the recording paper may be performed only when the copying is performed immediately after the recording. By doing so, it is not necessary to perform the small feeding operation each time copying is performed, and the required operation can be executed only in a situation where the leading edge of the recording is likely to occur immediately after the replacement of the recording paper. Needless to say, such a configuration and operation can also be realized in a facsimile machine.

The reading adjustment operation may be performed not only twice but also three times or more.

The writing sheet S is not limited to a white background and is not limited to one that can be written with a felt-tip pen.
Anything can be used as long as it can be identified by IS4.

A contact type image scanner or the like is preferably used as the reading means, but is not limited to the contact type, and a linear CCD (ChargeCoupl) adopting a reduction optical system is used.
edDevice: charge coupled device), or a CCD whose light-receiving surface is composed of a plurality of pixels vertically and horizontally.

As a reading method, a method of switching light sources of different emission colors was used. However, a method of switching emission colors by a color filter using one light source, or a light of different wavelengths corresponding to each color by a spectral prism is received. It may be a method of leading to a device. Furthermore, color C that can be directly separated
A method of reading a color image using a CD or the like may be used.

The recording means may be, for example, an ink jet type or laser type printer in addition to a thermal printer.

Accordingly, the recording paper may be ordinary cut paper or the like instead of the thermal paper.

The apparatus to which the present invention is applied is not limited to a facsimile apparatus or an electronic bulletin board, but the present invention can be applied to a copying apparatus having only a copying function.

The operation to be performed by the control circuit may be an operation controlled by a personal computer or the like.

Other than the above-mentioned characteristic parts of the present invention, the design can be changed appropriately as long as the effects of the present invention are not impaired.

[0078]

As described above, according to the copying apparatus of the invention described in claim 1, the preliminary feeding operation of the recording paper is performed as a preliminary operation to be performed in advance when copying, but at the same time, Since the read adjustment operation is also performed, the time required for the preliminary operation before the start of copying is unified, and the preliminary operation time can be shortened as much as possible.

According to the copying machine of the invention described in claim 2, in addition to the effect of the copying machine according to claim 1, after performing the read adjusting operation at the same time as the preliminary feeding operation of the recording paper, Since the second read adjustment operation is performed again, the read adjustment accuracy can be improved and the time required for the entire preliminary operation can be shortened.

Further, according to the copying machine of the third aspect of the invention, in addition to the effect of the copying machine of the first or second aspect, the leading edge of the recording paper can be copied immediately after the recording paper is replaced. Is reliably delivered from the paper discharge port, so that the recording paper can be smoothly discharged in accordance with the copying operation.

According to the copying apparatus of the invention described in claim 4, in addition to the effect of the copying apparatus according to any one of claims 1 to 3, when copying is performed immediately after the exchange of the recording paper. , To align the leading edge of the chart
Since the preliminary feeding operation is performed, it is possible to effectively prevent the leading end of the recording.

Furthermore, according to the storage medium of the invention described in claim 5, the operation of the copying apparatus according to claim 1 can be realized by operating the CPU based on the stored program.

[Brief description of drawings]

FIG. 1 is a block diagram showing a control circuit of a facsimile apparatus having a copying function as an embodiment of a copying apparatus according to the present invention.

FIG. 2 is a flowchart showing a copy processing procedure in a facsimile apparatus.

FIG. 3 shows another embodiment of the copying apparatus according to the present invention.
It is a schematic perspective view which showed the external appearance of the electronic bulletin board.

FIG. 4 is a block diagram showing a control circuit of the electronic bulletin board.

FIG. 5 is a flowchart showing a copy processing procedure on the electronic bulletin board.

[Explanation of symbols]

1 Bulletin board case 2 drive roller 3 Driven roller 4 CIS (contact image scanner) 5 body case 5a Operation button 5b Paper exit 10 CPU 12 RAM 14 ROM 15 EEPROM 16 gate array 21 Reader 22 Recording section 23 Operation part A electronic bulletin board S input sheet

Claims (5)

(57) [Claims] 1. A reading unit for reading an image on a sheet,
A recording paper holding unit for holding the recording paper is provided, and the image obtained by the reading means is supplied from the recording paper holding unit.
A copying apparatus comprising a recording unit for recording on recording paper and discharging from a paper discharge port, and performing the copying function by operating these units in parallel, the reading unit and the above-mentioned unit for copying. advance in case of parallel operation of the recording means, steady the sheet discharging the recording sheet
The tip of the recording paper should be attached to the recording means so that it can be ejected from the mouth.
While the preliminary feeding operation for discharging the end portion from the paper discharge port is performed, at the same time , the read image is read by the reading means.
A copying apparatus having an operation control unit for performing a read adjustment operation for obtaining a binarization level for discriminating between the two . Wherein said operation control means, after performed a reading adjustment operation and preliminary <br/> feeding operation of the recording paper at the same time, to re-perform the reading adjustment operation to the reading means, according to claim 1 The copying machine described in 1. 3. The copying apparatus according to claim 1, wherein the recording paper holding unit holds a replaceable roll-shaped recording paper so as to be sent out through the paper discharge port. 4. The recording paper holding section mounts the recording paper
It has a cover for removing it, and
A detection means for detecting that closed after him, the operation control means in the copying immediately after the opening and closing operation of the cover is detected by the detection means, the recording sheet
The copying apparatus according to claim 1, wherein the preliminary feeding operation is performed. 5. A reading unit for reading an image on a sheet,
A recording paper holding unit for holding the recording paper is provided, and the image obtained by the reading means is supplied from the recording paper holding unit.
A storage medium having a recording means for recording on recording paper and discharging it from a paper discharge port, and storing a program for controlling a copying machine that executes a copying function by operating these means in parallel. Te, previously when said reading means and said recording means is parallel operation for copying, smoothly the paper the paper discharge
The tip of the recording paper should be attached to the recording means so that it can be ejected from the mouth.
While the preliminary feeding operation for discharging the end portion from the paper discharge port is performed, at the same time , the read image is read by the reading means.
A storage medium storing a program including an operation control program for performing a read adjustment operation for obtaining a binarization level for discriminating between the two .